org.hibernate.loader.criteria
Class CriteriaLoader

java.lang.Object
  org.hibernate.loader.Loader
      org.hibernate.loader.BasicLoader
          org.hibernate.loader.OuterJoinLoader
              org.hibernate.loader.criteria.CriteriaLoader

public class CriteriaLoader
extends OuterJoinLoader

A Loader for Criteria queries. Note that criteria queries are more like multi-object load()s than like HQL queries.

Author:

Gavin King

Field Summary

Fields inherited from class org.hibernate.loader.OuterJoinLoader

aliases, collectionOwners, collectionPersisters, collectionSuffixes, lockModeArray, ownerAssociationTypes, owners, persisters, sql, suffixes

Fields inherited from class org.hibernate.loader.BasicLoader

NO_SUFFIX

Constructor Summary

CriteriaLoader(OuterJoinLoadable persister, SessionFactoryImplementor factory, CriteriaImpl criteria, String rootEntityName, LoadQueryInfluencers loadQueryInfluencers)

Method Summary

protected String	applyLocks(String sqlSelectString, LockOptions lockOptions, Dialect dialect) Append FOR UPDATE OF clause, if necessary.
protected boolean	areResultSetRowsTransformedImmediately(ResultTransformer transformer) Are rows transformed immediately after being read from the ResultSet?
protected LockMode[]	getLockModes(LockOptions lockOptions) What lock options does this load entities with?
Set	getQuerySpaces()
protected Object	getResultColumnOrRow(Object[] row, ResultTransformer transformer, ResultSet rs, SessionImplementor session) Get the actual object that is returned in the user-visible result list.
protected List	getResultList(List results, ResultTransformer resultTransformer)
protected boolean	isSubselectLoadingEnabled()
List	list(SessionImplementor session)
protected ResultTransformer	resolveResultTransformer(ResultTransformer resultTransformer) Determine the actual ResultTransformer that will be used to transform query results.
ScrollableResults	scroll(SessionImplementor session, ScrollMode scrollMode)

Methods inherited from class org.hibernate.loader.OuterJoinLoader

getAliases, getCollectionOwners, getCollectionPersisters, getCollectionSuffixes, getDialect, getEntityPersisters, getLoadQueryInfluencers, getLockOptions, getOwnerAssociationTypes, getOwners, getSQLString, getSuffixes, initFromWalker

Methods inherited from class org.hibernate.loader.BasicLoader

generateSuffixes, generateSuffixes, getCollectionAliases, getEntityAliases, postInstantiate

Methods inherited from class org.hibernate.loader.Loader

applyPostLoadLocks, autoDiscoverTypes, bindNamedParameters, bindParameterValues, bindPositionalParameters, checkScrollability, doList, extractKeysFromResultSet, getCompositeKeyManyToOneTargetIndices, getEntityEagerPropertyFetches, getFactory, getNamedParameterLocs, getQueryIdentifier, getResultSet, hasSubselectLoadableCollections, isSingleRowLoader, list, loadCollection, loadCollectionBatch, loadCollectionSubselect, loadEntity, loadEntity, loadEntityBatch, loadSequentialRowsForward, loadSequentialRowsReverse, loadSingleRow, needsFetchingScroll, prepareQueryStatement, preprocessSQL, scroll, toString, upgradeLocks

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CriteriaLoader

public CriteriaLoader(OuterJoinLoadable persister,
                      SessionFactoryImplementor factory,
                      CriteriaImpl criteria,
                      String rootEntityName,
                      LoadQueryInfluencers loadQueryInfluencers)
               throws HibernateException

Throws:

HibernateException

Method Detail

scroll

public ScrollableResults scroll(SessionImplementor session,
                                ScrollMode scrollMode)
                         throws HibernateException

Throws:

HibernateException

list

public List list(SessionImplementor session)
          throws HibernateException

Throws:

HibernateException

resolveResultTransformer

protected ResultTransformer resolveResultTransformer(ResultTransformer resultTransformer)

Description copied from class: Loader

Determine the actual ResultTransformer that will be used to transform query results.

Overrides:

resolveResultTransformer in class Loader

Parameters:

resultTransformer - the specified result transformer

Returns:

the actual result transformer

areResultSetRowsTransformedImmediately

protected boolean areResultSetRowsTransformedImmediately(ResultTransformer transformer)

Description copied from class: Loader

Are rows transformed immediately after being read from the ResultSet?

Overrides:

areResultSetRowsTransformedImmediately in class Loader

Parameters:

transformer - the specified transformer

Returns:

true, if getResultColumnOrRow() transforms the results; false, otherwise

getResultColumnOrRow

protected Object getResultColumnOrRow(Object[] row,
                                      ResultTransformer transformer,
                                      ResultSet rs,
                                      SessionImplementor session)
                               throws SQLException,
                                      HibernateException

Description copied from class: Loader

Get the actual object that is returned in the user-visible result list. This empty implementation merely returns its first argument. This is overridden by some subclasses.

Overrides:

getResultColumnOrRow in class Loader

Throws:

SQLException

HibernateException

getQuerySpaces

public Set getQuerySpaces()

applyLocks

protected String applyLocks(String sqlSelectString,
                            LockOptions lockOptions,
                            Dialect dialect)
                     throws QueryException

Description copied from class: Loader

Append FOR UPDATE OF clause, if necessary. This empty superclass implementation merely returns its first argument.

Overrides:

applyLocks in class Loader

Throws:

QueryException

getLockModes

protected LockMode[] getLockModes(LockOptions lockOptions)

Description copied from class: Loader

What lock options does this load entities with?

Overrides:

getLockModes in class OuterJoinLoader

Parameters:

lockOptions - a collection of lock options specified dynamically via the Query interface

isSubselectLoadingEnabled

protected boolean isSubselectLoadingEnabled()

Overrides:

isSubselectLoadingEnabled in class Loader

getResultList

protected List getResultList(List results,
                             ResultTransformer resultTransformer)

Overrides:

getResultList in class Loader